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1.In
this example, we wish to compare a proportion from a dichotomous
variable (prevalence of smoking) to a historical prevalence.
2.The
test is whether the prevalence proportion of smoking among participants
in the 2002 Framingham Heart Study is “lower” than historical prevalence
of smoking in 2002.
3.Thus,
we wish to compare the prevalence proportion of smoking in the
Framingham Heart Study (0.1363) to the historical prevalence (0.211).
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